Answer and Explanation:
The type of report best-suited for studying available options is the feasibility report. These reports are prepared either internally or by hired consultants to study the various options available before taking a decision. Costs and benefits of each available option is weighed in and technical / financial viability is measured.
It is organised indirectly to include the subject of the study, the decision, background information of they problem, the evaluation of positive and negative options of proposed solutions, costs and schedules for implementation of the solution are outlined.
Amongst the three given answers in the question, the closest report that studies the available options is